AT&T 6300 Service Manual page 147

INSTALLATIONS
15. Go to Step 20.
16. Verify that jumpers are present on WI, W2, W4, and W6 on
the WD Controller (Figure 3-38). ROM BIOS 1.43 or
higher are required for the WD controller.
17. Verify the jumper's location: W2 connects pins 1 and 2, W4
connects pins 2 and 3, and W6 connects pins 2 and 3;
Location W3 does not have a jumper.
Note: The physical locations of the jumpers may
vary.
18. The jumper settings (SW1) for the 20-MB Seagate ST-225
HDU with WD Controller are shown in Figure 3-40.
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